Lamp.



J. H. POWERS.

LAMP.

APPLICATION FILED APR. 21. I9I1.

1 ,272;3 l 5.. Patented July 9, 1918.

l i I Z-- j' gwen* o1,

Hicham# lit iw. Il,

JAMES n. POWERS, or nVANsvILLn,1in3mini.A

ToaZZ 'whom it lmay concern:

Be it 'known that I, JAMES H. Pownns, a

'icitizenof then United States, residing at Evansville, in the county of Vanderburg and" State of Indiana, have invented certain.' usefulV Improvements in Lamps, of which thefollowing is a specification, reference being had -therein to the accompanyinlg drawing.

YT-he present invention has reference generally tto -improvements in acetylene lamps 4and more particularly relates to. acetylene lamps of the type particularly adapted for use 'on miners caps.

As the primary aim and object, the present invention contemplates the provision of alamp body consisting of two sections constructed 4to constitute a carbid receiving0r aiidgas'generatin'g cup and a superimposed Water chamber,'novel means being adjustably mounted in the water chamber for con: trolling the lilow of water from the chainberl to I' the carbid cup wherebyv to consequently'regulate the amount of gas generated therein;

*Itis anadditional and equally important objeetf'of' this invention to construct the Water feeding and controlling'means so as to" agitate the carbid within the cup thus facilitating the generation of the gas. I

' As a more specific object, the invention embraces the provision of improved means for #removably connecting a reflector to the water chamber and at the same time providing'a communication between the gas outlet pipe and the burner tip; and to provide novel means for connecting a finger piece I tothe water feed tube.

`Among the other aims and objects 'of the resent invention may be recited the provision of avdevice of the character mentioned with 'a view tocompactness, and in i which the number of parts are few, the construction simple, the cost of production low and the efficiency high.

Other objects, as well as the nature, characteristicfeatures and scope of my inventioirwill be more readily apparent from 'the following description taken in connection with theaccompanying drawings and pointedout in the claims;

Thev preferred embodiment of the present LAMP.

` panying drawings, in Whichs- Specification of Iietters Patent Patented Jllilyi', application sied April 27, 1917. serial N-o.\1e4,s24. i'

invention is clearly illustrated the accom-7^- Y Figure 1 is a vertical 'section' of my'invenf '55 tion. `AFig. 2 is a-transverse section taken fon line 2-2 of Fig. 1 .in the direction lin which the arrows point. l' 1 Fig. 3 is a top plan of the top- 'Lof the 60 water chamber, and 5 Fig. 4 is a perspective detail.

Similar reference characters are employed in all ofl the above described: views, to-'indi! cate corresponding parte.' "ff a Referring now', more part-ieirl'afrly, 'tti 'theft accompanying drawings .Ib'pro.videffaU lamp" body embodying two sections the lo'werlo which serves as a bas-eend is'shaperi to fpr'm,

a cylindrical carbid receiving'an ;'gasj"geifif," i1)-I` lerating cup 1. A threaded neck` 2.onitlieA spondingly threaded collar 3 whiclndepeiids.; from the bottom 4, ottheiv upperl section "1 shaped to Iform a cylindrical air tight water-1.76...

chamber 5. As is apparent, th'e.collar"3 with a filling opening 6, and an upstanding exteriorly threaded collar 7 is formed about the opening while theopening is lremovably closed throughthe ,medium .of a .cap 8..

lVith a view to providing novel means for.' 85

controlling and feeding waterto the cup-:1, from -the chamber 5, I employ a tiibevland rigidly connect it in a central openifg' in the top of chamber 5. The tube is alsozp'rovided with a transverse opening 10 p0sif 90..

tioncd so as to lie just above the upper'sur-A .face of the bottom LLand thereby allow wat/en to enter the interior of the tube.y AThe lower.` edge of the tube 9 terminates near the bot',-

ently appear. Arranged 'in telescopic relaf'l tion with tube 9 is a tube ll'for controlling 5 the flow. of water through the .tube 9.,. The

lower end of tlietube 11 is4 bifurcated te provide spaced portions 12 while the-f freerlQo-i -ends of these portions arel bent arcu'ately".A

upon themselves to provide agitatin arnis' 13 for the carbid Within the cup 1% he bifui-cation in the tube 11 is adapted for reg- ...Mum-.......m-w

istration with the opening to allow the water which passes through the opening 10 to flow down the inside of the tube and fall upon the carbid in the cup so as to generate gas therein. dIn order to rotate the tube and at the same time adjust the flow 0f water from the chamber 5 tothe cup 1, I have threaded the upper end thereof as indicated by the numeral 14 and have arranged this threaded end in the upper end of the tube 9 as indicated at 15. A finger piece 16 has a shoulder 17 formed thereon which is arranged in the slot 18 in the upper end of the tube 11 and retained therein by means of a nut 19 which engages the upper threaded end of the tube and also the shoulder as indicated in the drawings.

For the purpose of providing suitable means for allowing the gas to pass from the cup l, I employ an elbow pipe 20, one portion of which 1s mounted in an opening in the bottom `4 while thev other portion is mounted in a cylindrical opening in the bottom 21 of a screw threaded recess 22 in the' wall of the chamber 5.

As intimated, I'have provided a reflector 23 which may be and preferably is of a concave form and to removably connect there- .ector in the chamber I have formed on the rear face thereof an exteriorly .threaded oollar 24, the threads of which correspond to threads in the recess 22 to facilitate engagement between these parts. Absorbent material 25 is arranged. in the collar 24 and serves to filter and purify the gas while the burner tip 27 is mounted centrally of the outer face of the reflector. An igniter 27 of any preferred form is mounted in the reflector 23 and in the present instance consists of an abrasive wheel 28 and a spark producing element 29 which coperates with the wheel 28 so that the gas which is being discharged from the burner tip may be readily ignited.

A handle 30 is connected to the outer surface of the cup 1 and serves as a suitable means whereby the lamp may be readily attached to a miners cap.

The operation of the invention may be reviewed as follows:

Assuming that the parts have been as-V sembled inthe manner described and that carbid has been placed in the cup 1 and water in the chamber 5 to allow water to enter the cup 1 the finger piece 16 is engaged and rotated to adjust the threaded end 14 of the tube 11 in the tube 9 so as to consequently arrange the bifurcation and thel opening 10 in registration which allows the -water to enter the opening and pass down whereit is ignited by actuating the igniter 27. By alternately rotating the finger piece ,16. the arms 13 will agitato the carbid in the 1 so as to consequently effectively genrate gas as-the water falls from the tube. As is apparent the lower portion of the tube 9 supports the bifurcated portions 12 of the tube 11.

lVhile I have shown what I deem to be the preferable form of my revice, I do not wish .to be limited thereto, as there might be sliglyt changes made in the details of construction and arrangement 0f parts without departing from the spirit of my invention.

Having thusdescribed my invention what I claim as new and desire to secure by Letters Patent is:

1. acetylene lamp including a sectional body embodying a carbid receiving and a gas generating cup and a superimposed water chamber, a water feeding tube disposed centrally through the bottom of the chamber and projecting into the cup and having the upper end connected to the top of the chamber and further provided with an opening near the bottom of the chamber for establishing communication between the chamber and the cup, another tube telescopically received in the water feeding tube, the upper end of the last mentioned tube being adjustably mounted near its upper end in the Water feeding tube and projectin above the top of the chamber, the lower en of the last mentioned tube being bifurcated so as to coperate with the'opening in the water feeding tube in controlling the flow of water to the cup, agitating arms formed on the free ends of portions of the tubes formed by the bifurcations, Aand an operating element connected to the -upper projecting end of the last mentioned tube lfor partially rotating and oscillating the last mentioned tube to allow water to flow through the opening and between the bifurcation into the cup and for actuating` the agitating arms.

2. An acetylene lamp comprising a sectional body including a carbid receiving and gas generating cup and a superimposed water chamber, a water feeding tube disposed through the bottom of the chamber and positioned in the cup and having the upper ends rigidly connected to the top of the chamber, the said tube being also formed with an oper-:ing near the bottom of the chamber for establishingcommunication with the cup, another tube telescopically arranged within the first tube and having the upper portion 'threadedand arranged in adjustable threaded engagement with the top of the water feeding tube and projecting through both, the lower end of the last mentioned tube being bifurcated so that when the tube is partially rotated the space between the bifurcation will be alined with the opening so as to permit 'the Water Howing=through the opening and into the eup,. agitating arms formed on the lower bifurcated portions of the tube, the extreme 1'* upper end of the threaded portion of the y'tube being provided with a slot, a finger piece having a shoulder thereon receivable within the slot and Vdesigned to facilitate partial rotation and oscillation of the -tube and control the How ofwater and also aetnate the agitating arms, movable engagement with the upper. threaded portion of the tube and the shoulder for clamping the finger piece to the tube.

In testimony whereof I aiix my signature.

JAMES H. POWERS.

and a nut forre- 

